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Resources

Glossary

A

AC charging
Charging with alternating current, converted to DC by the car's on-board charger. Typically 3.7–22 kW.
Autocharge
Starts a session automatically by recognising the vehicle's MAC address.

C

CDR
Charge Detail Record: the final, billable record of a charging session.
CPO
Charge Point Operator: owns or operates charging infrastructure.
CSMS
Charging Station Management System, the back-end that chargers connect to.

D

DC fast charging
Charging with direct current straight into the battery. Typically 50–400 kW.
DLM
Dynamic Load Management: shares the available power between chargers in real time.

E

eMSP
e-Mobility Service Provider: gives drivers access to charging, often across many CPOs.
EVSE
Electric Vehicle Supply Equipment: a charging point with one or more connectors.

I

Idle fee
A per-minute fee once charging has finished but the car stays plugged in.
ISO 15118
The standard for vehicle-to-charger communication that enables Plug & Charge.

K

kWh
Kilowatt-hour, the unit of energy delivered.

O

OCPI
Open Charge Point Interface: the protocol for roaming between CPOs and eMSPs.
OCPP
Open Charge Point Protocol: the protocol between a charger and the CSMS.
OpenADR
Open Automated Demand Response: the standard for grid-flexibility signals.

R

Roaming
Letting drivers of one provider charge on another operator's network.

T

Time-of-use tariff
A price that varies by hour of the day or by the energy spot price.

V

V2G
Vehicle-to-Grid: the car feeds energy back to the grid.